Which sequence correctly describes the proper piston stroke order for a 4-cycle engine?

The sequence of piston strokes in a 4-cycle engine is essential for understanding how the engine operates efficiently. The correct order starts with the intake stroke, where the piston moves down, drawing in a mixture of air and fuel. This is followed by the compression stroke, where the piston moves back up, compressing the air-fuel mixture in the cylinder, preparing it for ignition.

After compression, the engine reaches the power stroke. At this point, the compressed mixture is ignited, causing an explosion that forces the piston down, creating power for the engine. Finally, during the exhaust stroke, the piston moves back up to expel the burnt gases from the cylinder, clearing the way for the next intake stroke.

This cyclical sequence—intake, compression, power, and exhaust—ensures that the engine runs smoothly and efficiently, maintaining the operational cycle necessary for a 4-cycle engine design. Understanding this order is crucial for diagnosing engine problems, conducting repairs, and maintaining proper engine function.